GE Industrial Solutions Zephyr Non-Isolated SMT - Manual (Page 7)

Zephyr Non-Isolated SMT DC-DC Power Module:
0.8V to 3.5V @ 20A Output, 5V to 12V Input
Data Sheet
March 31, 2010
Overshoot at Turn-on or Turn-off
Overshoot in application or removal of the input voltage, or application or removal of the O
UTEN
signal is 5%
above the initially set output voltage. No negative voltage will be present on the output during turn-on or
turn-off.
Module OK
An open collector signal with 2.0 mA current sinking capability is provided. The signal is in the low
impedance (less than 250
Ω) state whenever V
OUT is off by more than ± 11% from its nominal value or there
is no input voltage, and in the open (more than 100 k
Ω) state whenever V
OUT is within its specified range.
The Module OK pin has an internal 0.1 μ F capacitor connected to the output voltage return (G ND ).
P-1 MOD_OK
0.1u
Isink < 2mA
Figure 3. Module OK Circuitry
Output Enable — OUTEN
The module will accept an open collector signal consistent with TTL DC specifications for controlling the
output voltage. The module is enabled when this signal is above 2.0V and disabled when this signal is less
than 0.8V. The module does not source this signal with more than 0.6 mA. It is referenced to output voltage
return (G
ND ).
P-2 OUTEN
+5V
10k
820
Figure 4. Output Enable Circuitry
LINEAGE POWER 7